As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FINAL APPROACH, CAPTAIN AND FIRST OFFICER EXPERIENCED A SLIGHT BURNING ODOR FROM APPARENT AIR CONTAMINATION; RAN ENVIRONMENTAL SYSTEM ISOLATED PACKS NO ODOR PRESENT. COMPLIED WITH INFORMATION NOTICE 2017-T015B SECTION A. AIRCRAFT IS OK FOR SERVICE.